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For Emergency: 911 | Out of County: 240-777-0311


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All Services

Master Gardener's Program
Further information is available on the website by clicking on the link below. Cooperative Extension Services is located at 18410 Muncaster Road Derwood, MD 20855. 301.590.9638
Find more information from the following link(s):
  • Montgomery County Master Gardeners

  • To speak with a Customer Service Representative, please call 311 during business hours.